845822 has 4 divisors (see below), whose sum is σ = 1268736. Its totient is φ = 422910.

The previous prime is 845809. The next prime is 845833. The reversal of 845822 is 228548.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211454 + ... + 211457.

It is an arithmetic number, because the mean of its divisors is an integer number (317184).

2⁸⁴⁵⁸²² is an apocalyptic number.

845822 is a deficient number, since it is larger than the sum of its proper divisors (422914).

845822 is a wasteful number, since it uses less digits than its factorization.

845822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422913.

The product of its digits is 5120, while the sum is 29.

The square root of 845822 is about 919.6858159176. The cubic root of 845822 is about 94.5713653320.

The spelling of 845822 in words is "eight hundred forty-five thousand, eight hundred twenty-two".